<template>
  <div class="login">
    <h3 class="title">数据治理平台</h3>

    <div class="form">
      <div class="row">
        <input
          v-model="loginForm.username"
          auto-complete="off"
          placeholder="账号"
          type="text"
        />
      </div>

      <div class="row">
        <input
          v-model="loginForm.password"
          auto-complete="off"
          placeholder="密码"
          type="password"
        />
      </div>

      <div class="row">
        <button
          :loading="loading"
          style="width: 100%"
          type="primary"
          @click.prevent="login"
        >
          <span v-if="!loading">登 录</span>

          <span v-else>登 录 中...</span>
        </button>
      </div>

      <Captcha ref="captchaRef" />
    </div>
  </div>
</template>

<script setup>
  import { ref, watch } from 'vue'
  import { useRoute, useRouter } from 'vue-router'
  import { getCurrentInstance } from 'vue'
  import { getCodeImg } from '@/api/login'
  import Cookies from 'js-cookie'

  // import { encrypt, decrypt } from '@/utils/jsencrypt'
  import useUserStore from '@/store/modules/user'
  import Captcha from '@/assets/tac/captcha.vue'
  const userStore = useUserStore()
  const route = useRoute()
  const router = useRouter()
  const { proxy } = getCurrentInstance()

  const loginForm = ref({
    username: '',
    password: '',
    rememberMe: false,
    code: '',
    uuid: '',
  })

  const loginRules = {
    username: [{ required: true, trigger: 'blur', message: '请输入您的账号' }],
    password: [{ required: true, trigger: 'blur', message: '请输入您的密码' }],
    code: [{ required: true, trigger: 'change', message: '请输入验证码' }],
  }

  const codeUrl = ref('')
  const loading = ref(false)

  // 验证码开关
  const captchaEnabled = ref(true)

  // 注册开关
  const register = ref(false)
  const redirect = ref(undefined)

  watch(
    route,
    (newRoute) => {
      redirect.value = newRoute.query && newRoute.query.redirect
    },
    { immediate: true },
  )

  function handleLogin() {
    proxy.$refs.loginRef.validate((valid) => {
      if (valid) {
        loading.value = true

        // 调用action的登录方法
        userStore
          .login(loginForm.value)
          .then(() => {
            const query = route.query
            const otherQueryParams = Object.keys(query).reduce((acc, cur) => {
              if (cur !== 'redirect') {
                acc[cur] = query[cur]
              }
              return acc
            }, {})
            router.push({
              path: redirect.value || '/',
              query: otherQueryParams,
            })
          })
          .catch(() => {
            loading.value = false

            // 重新获取验证码
            if (captchaEnabled.value) {
              getCode()
            }
          })
      }
    })
  }

  function getCode() {
    getCodeImg().then((res) => {
      captchaEnabled.value =
        res.captchaEnabled === undefined ? true : res.captchaEnabled
      if (captchaEnabled.value) {
        codeUrl.value = `data:image/gif;base64,${res.img}`
        loginForm.value.uuid = res.uuid
      }
    })
  }

  function getCookie() {
    const username = Cookies.get('username')
    const password = Cookies.get('password')
    const rememberMe = Cookies.get('rememberMe')
    loginForm.value = {
      username: username === undefined ? loginForm.value.username : username,
      password:
        password === undefined ? loginForm.value.password : decrypt(password),
      rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
    }
  }

  function login() {
    // 用以切换不同类型 /genCaptcha?type=RANDOM
    // 'RANDOM', 'SLIDER', 'CONCAT', 'ROTATE', 'WORD_IMAGE_CLICK',

    const captchaConfig = {
      // 请求验证码接口
      requestCaptchaDataUrl: `${import.meta.env.VITE_APP_BASE_API}/genCaptcha?type=SLIDER`,

      // 验证验证码接口
      validCaptchaUrl: `${import.meta.env.VITE_APP_BASE_API}/checkCaptcha`,

      // 验证成功回调函数
      validSuccess: (res, c, t) => {
        const token = res.data && res.data.id

        // 携带token调用登录接口
        const sendData = {
          username: loginForm.value.username,
          password: loginForm.value.password,
          uuid: token,
        }
        userStore.login(sendData).then((rres) => {
          const query = route.query
          const otherQueryParams = Object.keys(query).reduce((acc, cur) => {
            if (cur !== 'redirect') {
              acc[cur] = query[cur]
            }
            return acc
          }, {})
          router.push({
            path: redirect.value || '/',
            query: otherQueryParams,
          })
        })
      },
    }

    proxy.$refs.captchaRef.load(captchaConfig)
  }
</script>

<style lang="scss" scoped>
  .login {
    display: flex;
    flex-flow: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-image: url('../assets/images/login-background.jpg');
    background-size: cover;
  }
  .title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #707070;
  }

  .login-form {
    border-radius: 6px;
    background: #ffffff;
    width: 400px;
    padding: 25px 25px 5px 25px;
    .el-input {
      height: 40px;
      input {
        height: 40px;
      }
    }
    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 0px;
    }
  }
  .login-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
  }
  .el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
  }
</style>
